1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <valarray> 11 12 // template<class T> class valarray; 13 14 // void swap(valarray& v); 15 16 #include <valarray> 17 #include <cassert> 18 #include <cstddef> 19 20 int main() 21 { 22 { 23 typedef int T; 24 T a1[] = {1, 2, 3, 4, 5}; 25 T a2[] = {6, 7, 8, 9, 10, 11, 12}; 26 const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 27 const unsigned N2 = sizeof(a2)/sizeof(a2[0]); 28 std::valarray<T> v1(a1, N1); 29 std::valarray<T> v2(a2, N2); 30 std::valarray<T> v1_save = v1; 31 std::valarray<T> v2_save = v2; 32 v1.swap(v2); 33 assert(v1.size() == v2_save.size()); 34 for (std::size_t i = 0; i < v1.size(); ++i) 35 assert(v1[i] == v2_save[i]); 36 assert(v2.size() == v1_save.size()); 37 for (std::size_t i = 0; i < v2.size(); ++i) 38 assert(v2[i] == v1_save[i]); 39 } 40 { 41 typedef int T; 42 T a1[] = {1, 2, 3, 4, 5}; 43 const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 44 std::valarray<T> v1(a1, N1); 45 std::valarray<T> v2; 46 std::valarray<T> v1_save = v1; 47 std::valarray<T> v2_save = v2; 48 v1.swap(v2); 49 assert(v1.size() == v2_save.size()); 50 for (std::size_t i = 0; i < v1.size(); ++i) 51 assert(v1[i] == v2_save[i]); 52 assert(v2.size() == v1_save.size()); 53 for (std::size_t i = 0; i < v2.size(); ++i) 54 assert(v2[i] == v1_save[i]); 55 } 56 { 57 typedef int T; 58 T a2[] = {6, 7, 8, 9, 10, 11, 12}; 59 const unsigned N2 = sizeof(a2)/sizeof(a2[0]); 60 std::valarray<T> v1; 61 std::valarray<T> v2(a2, N2); 62 std::valarray<T> v1_save = v1; 63 std::valarray<T> v2_save = v2; 64 v1.swap(v2); 65 assert(v1.size() == v2_save.size()); 66 for (std::size_t i = 0; i < v1.size(); ++i) 67 assert(v1[i] == v2_save[i]); 68 assert(v2.size() == v1_save.size()); 69 for (std::size_t i = 0; i < v2.size(); ++i) 70 assert(v2[i] == v1_save[i]); 71 } 72 { 73 typedef int T; 74 std::valarray<T> v1; 75 std::valarray<T> v2; 76 std::valarray<T> v1_save = v1; 77 std::valarray<T> v2_save = v2; 78 v1.swap(v2); 79 assert(v1.size() == v2_save.size()); 80 for (std::size_t i = 0; i < v1.size(); ++i) 81 assert(v1[i] == v2_save[i]); 82 assert(v2.size() == v1_save.size()); 83 for (std::size_t i = 0; i < v2.size(); ++i) 84 assert(v2[i] == v1_save[i]); 85 } 86 } 87
